Damper



March 7,1939, c. R. ANDERSON 2,149,565

DAMPER I Filed March 26, 1936 'INVENTOR.

ATTORNEYS;

Iii!

Patented Mar. 7, 1939 PATENT OFFICE DAlVIPER Carl R. Anderson, Erie, Pa.,

wold Manufacturing Company,

assignor to The Gris- Erie, Pa., a corporation of Pennsylvania Application March 26,

1 Claim.

This invention relates to dampers formed on the general plan of the damper illustrated in my Patent No. 1,697,100. In constructing the handle, as stated in that patent, the parts may be and ordinarily are finished by plating and after the plating the handle is secured by welding to the spindle. This welding destroys the finish locally. In that patent a spring was used for retracting the rod into locking position, and the spring and a portion of the handle were housedin an outwardly positioned thimble. Preferably under such circumstances the spring was formed of conical shape and abutted directly on the handle. In the structure in my previous patent the handle was welded to the end of the rod and this weld forms an unsightly portion of the rod, and the thimble was intended to .cover this part. In the present invention I accomplish the housing of the weld and also form a more preferable abutment at the handle end of the spring. Features and details of the invention will appear from the specification and claim.

A preferred embodiment of the invention is illustrated in the accompanying drawing as follows:

Fig. 1 shows a plan view of the damper, the part broken away to better show construction.

Fig. 2 a central section through a thimble abutment at the handle end of the spring.

Fig. 3 an end view of said thimble.

Fig. 4 a section on the line fl--4 in Fig. 1.

l marks the damper plate. This is provided with loops 2, 3 and 4, the loop 3 extending to the opposite side of the plate from the loops 2 and 4, and these loops forming a rod opening 5. The loops at both edges of the plate as shown are the same but the device is operative with the arrangement of loops only at one edge. The plate is provided with an enlargement 6 at the inside of the loop- 2. As shown, this enlargement is in the form of an opening entirely through the plate.

1936, Serial No. 71,006

The damper rod i has the usual point 8 and is of a size to pass through the loops. It is provided with a handle 9 and a shoulder ill, the shoulder being formed by bending the rod. A coil spring H surrounds the rod and the outer end of the 5 spring abuts .or is received in a washer in the form of a thimble H2. The inner end of the spring extends into a thimble l3 which abuts the plate. In operation the rod is passed through a pipe and through the plate opening, the shoul- 10 der or bend it being turned toward the open side of the loop 2. With the shoulder in the enlargement 6 the rod is turned a half turn and as it is retracted by the spring I i the shoulder is carried into the locking portion of the opening which is formed in the loop 2.

The handle has a small loop M at its inner end from which the arms 65 extend. The loops I4 is secured to the rod by weld l8. The abutting thimble l2 has the rod opening ll and this is notched at It so that the inner end of the loop 14 will enter the notches. This places the weld within the thimble and makes a sightly finish between the handle and the thimble. At the same time it permits the use of a spring, as to which the handle would not be a very satisfactory abutment.

What I claim as new is:

In a damper, the combination of a plate; a spindle extending from the plate; a handle 0 formed with an inwardly extending loop, the inner end of the loop being welded to the end of the spindle, the outer end of the loop being extended forming handle arms; a washer on the spindle having a washer-opening adapted to receive the rod, said washer-opening being shaped to receive the inner end of the loop, placing the weld inwardly from the outer face of the washer; and a spring between the washer and the plate, said washer being of thimble form receiving the outer end of the spring.

CARL R. ANDERSON. 

